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From Luciano Andress Martini <777u...@gmail.com>
Subject Re: Java.lang.out.of.memory not clearly....
Date Fri, 27 Jan 2012 17:53:51 GMT
its 64 bits? How can i increase the object heap?



2012/1/27, Pid <pid@pidster.com>:
> On 27/01/2012 16:29, Luciano Andress Martini wrote:
>> I need to know if the error is from my part (server administrator),
>> from the developer or from the hardware/vms. Some times that occurs
>> when processing two milion of registry (i am talking from expressocard
>> a company of credit cards).
>>
>> Its a rarely error because this processing occurs rarely.
>>
>> in fact, mysql in the another server with 12 processors, still
>> running, and tomcat in a virtual machine called adm (in another
>> physical machine, with 4 processors) still running.
>>
>> So, this errors occurs like that:
>>
>> 1- Tomcat started
>> 2- This processing is realized ok in the first time
>> 3- Tomcat stable in the users acess.
>> 4- The processing is realized again, some days later, inn 98% of
>> processing servers crashes, but mysql is still running.
>> 5- Restar of tomcat service tomcat6 restart
>> 6- the processing started again, and server can done the processing.
>>
>> In the moment of the crash:
>> jstat -class
>> Loaded  Bytes  Unloaded  Bytes     Time
>>
>>  15007 32265.0      300   505.9      12.11
>
> So permgen is using 32Mb
>
>> Java using: 914mb
>> Free memory on the virtual machine server: 2152
>>
>> Java says:
>> java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError:
>> Java heap space at
>> java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:232) at
>> java.util.concurrent.FutureTask.get(FutureTask.java:91) at
>> wfr.rules.WFRRule.execute(WFRRule.java:1820) at
>> wfr.rules.WFRRule.execute(WFRRule.java:1792) at
>> wfr.web.actions.ExecuteRuleAction.execute(ExecuteRuleAction.java:198)
>> at wfr.web.Action.doAction(Action.java:126) at
>> wfr.web.Controller.process(Controller.java:100) at
>> wfr.web.Controller.doPost(Controller.java:67) at
>> javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at
>> javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
>> at
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at wfr.web.ContextFilter.doFilter(ContextFilter.java:78) at
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
>> at
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>> at
>> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)
>> at
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>> at
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>> at
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>> at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
>> at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
>> at
>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
>> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
>> at java.lang.Thread.run(Thread.java:662) Caused by:
>> java.lang.OutOfMemoryError: Java heap space
>>
>> Java options (that i configurate)
>> -Djava.awt.headless=true
>> -Xmx512m
>> -XX:MaxPermSize=3512M
>
> Cripes!  3.5Gb of PermGen space?!  I really doubt you want that.
>
> So your JVM is using 900Mb, your object heap is 512Mb.
>
> If you have more memory available, why not assign more to the heap?
> How much memory is available?
>
> Are you using 32bit or 64bit?
>
>
> p
>
>> -XX:+CMSIncrementalMode
>> -XX:+UseConcMarkSweepGC
>> -XX:+CMSClassUnloadingEnabled
>> -XX:ParallelGCThreads=4
>> -XX:+UseParNewGC
>>
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>
>
> --
>
> [key:62590808]
>
>

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